[Biosynthesis of water-soluble vitamins].

Vitamins are a class of organic substances essential for maintaining the normal physiological function of organisms. Most vitamins cannot be synthesized by the human body, and a small number of vitamins can only be synthesized in a limited manner, which cannot meet the body needs. Therefore, people need to take food or drugs containing vitamins to meet the body needs. Nowadays, vitamins are widely used in medicine, food or feed additives, cosmetics and other industries, and the demand for vitamins is growing. Vitamins are mainly produced by chemical synthesis and biosynthesis. Compared with chemical synthesis, biosynthesis of vitamins is praised for the environmental friendliness, high safety, and low costs. Therefore, it is of great practical significance to study the biosynthesis methods of vitamins. This paper reviews the research progress in the methods and summarizes the research results in the biosynthesis of water-soluble vitamins (B vitamins and vitamin C) in recent years and then makes an outlook on the future development in this field.